PHYLIP is a free package of programs for inferring phylogenies. It is distributed as source code, documentation files, and a number of different types of executables. These Web pages contain information on PHYLIP and ways to transfer the executables, source code and documentation to your computer. [Information of the supplier, modified]Methods that are available in the package include parsimony, distance matrix, and likelihood methods, including bootstrapping and consensus trees. Data types that can be handled include molecular sequences, gene frequencies, restriction sites and fragments, distance matrices, and discrete characters. Taxonomy, Software, Evolutionary trees